Finding the Fourth Proportional to 158,616.50, 218,904.82 and 87,010.46

Step by Step Solution

1. Step 1: Write the proportion equation
   158,616.50 : 218,904.82 = 87,010.46 : x
2. Step 2: Convert to fraction form
   158,616.50/218,904.82 = 87,010.46/x
3. Step 3: Cross multiply
   158,616.50x = 218,904.82 × 87,010.46
4. Step 4: Simplify right side
   158,616.50x = 19,047,009,084.42
5. Step 5: Solve for x
   x = 19,047,009,084.42/158,616.50
6. Step 6: Final answer
   x = 120,082.14